Horizontal bearing reinforcing body of soft foundation cast-in-place pile and construction method thereof

A technology of soft soil foundation and construction method, which is applied in the direction of foundation structure engineering, sheet pile wall, construction, etc., can solve the problems of difficult to guarantee the quality of piles and complicated construction operations, and achieve the improvement of horizontal bearing capacity, simple installation method and enhanced The effect of vertical bearing capacity

Active Publication Date: 2017-07-28
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above special-shaped pile foundations not only increase the vertical bearing capacity, but also contribute to the improvement of the horizontal bearing capacity of the pile foundation, b

Method used

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  • Horizontal bearing reinforcing body of soft foundation cast-in-place pile and construction method thereof
  • Horizontal bearing reinforcing body of soft foundation cast-in-place pile and construction method thereof
  • Horizontal bearing reinforcing body of soft foundation cast-in-place pile and construction method thereof

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Such as figure 1 Shown is a horizontal load-bearing reinforcement of cast-in-place piles on soft soil foundations, including a set of flanges 1 and a hoop 2 with the same structure and size. The flanges 1 are evenly arranged around the hoop 2, and the flanges 1 Small holes 3 are provided; the wing plate 1 is a trapezoid with rounded corners, the short side of the wing plate 1 is provided with a slot 10, and the hoop 2 is evenly provided with protruding teeth 9 in the same number as the wing plate 1 along the circumference. The hinge between the plate 1 and the hoop 2 is realized through the gap fit between the slot 10 and the protruding teeth 9; when no external force is applied, the wing plate 1 hangs down freely, and the wing plate 5 can achieve a 90° range relative to the hoop 2. Rotation, that is: the upper surface of the wing plate 1 is subjected to downwa...

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Abstract

The invention discloses a horizontal bearing reinforcing body of a soft foundation cast-in-place pile and a construction method thereof. The device comprises one group of wing plates with the same structure and size and a hoop, wherein the wing plates are uniformly arranged at the periphery of the hoop, and small holes are arranged in the wing plates; the wing plates are in a rounded-trapezoid-like shape, and clamping grooves are arranged in the short edges of the wing plates; projecting teeth are uniformly arranged in the hoop in the peripheral direction, the number of the projecting teeth is consistent with the number of the wing plates, and the wing plates are hinged to the hoop through the clearance fit of the clamping grooves and the projecting teeth; and the wing plates can rotate relative to the hoop in a 90-degree range. The long-lasting problems that the single dependence of the horizontal bearing capability improvement of the cast-in-place pile on the diameter increase of the pile causes cost wastes and a specially-shaped pile foundation has to depend on special construction equipment are solved. According to the method, the horizontal bearing reinforcing body is jointly formed by adopting the wing plates, the hoop and grouting concrete, the improvement of the horizontal bearing capability of the cast-in-place pile is realized, the vertical bearing capability is also enhanced, and special pile foundation construction equipment is not required; and the mounting method is simple, efficient and rapid.

Description

technical field [0001] The invention relates to building construction and pile foundation engineering technology, in particular to the problem of construction load bearing safety of cast-in-place piles, in particular to a horizontal load-bearing reinforcement of cast-in-place piles in soft soil foundations and a construction method thereof. Background technique [0002] With the development and utilization of large-scale land resources in my country, pile foundations have become the main carrier of various engineering constructions, and they are widely used in high-rise buildings, highway bridges, wind power foundations and other fields. In addition to bearing vertical loads, pile foundations also bear certain horizontal loads in many cases (for example, earthquake loads, wind loads, adjacent pile loads, adjacent excavations, slope reinforcement, etc.). Bored piles are widely used because of their convenient construction and high bearing capacity. In recent years, the accel...

Claims

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Application Information

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IPC IPC(8): E02D5/34E02D15/04
CPCE02D5/34E02D15/04E02D2250/0023
Inventor 李洪江刘松玉童立元哈斯
Owner SOUTHEAST UNIV
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